I think they total them up from the weekend. I was a wee little PW on the weekend and yesterday. The April '08 ladies keep me busy and now that all the national boards are counted all my posts count here. I post on Buying a House, Travel, and San Diego on top of here and April '08.
And, this week, I didn't get any days at work (which I'm bitter about, but that's another story) so I've just been sitting here posting and looking at virtually every house currently on the MLS! There's really not much else to do with gas as expensive as it is.